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Cover unit with air hole for ink-jet head and printer with said cover unit

A technology of printing device and inkjet printing head, which is applied in printing and other directions, and can solve problems such as heating element overheating, nozzle damage, high pressure, etc.

Inactive Publication Date: 2003-11-26
QISDA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cover is a box made of rubber with only one opening open. When covered, the cover edge quickly seals the inkjet head, and when the cover is continuously pressed into the inkjet head, it will cause excessive pressure. Excessive pressure Causes ink in the nozzle to flow back, and as a result, when printing starts, there is no ink in the nozzle for the heating element to heat, causing the heating element to overheat and possibly damage the nozzle

Method used

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  • Cover unit with air hole for ink-jet head and printer with said cover unit
  • Cover unit with air hole for ink-jet head and printer with said cover unit
  • Cover unit with air hole for ink-jet head and printer with said cover unit

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Embodiment Construction

[0029] refer to Figure 1 to Figure 3 , Figure 1 to Figure 3 It is a simplified continuous cross-sectional schematic view of the covering process of the covering unit 10 of the present invention. These schematic diagrams only describe the covering function of the present invention rather than the detailed structure of the covering unit 10 , which will be described later. Such as figure 1 As shown, the inkjet printhead 20 is in a ready-to-cover position. Inkjet printhead 20 includes at least one nozzle 22 that ejects ink 24 onto a document (not shown) when a print job is performed, and ink 24 contained in nozzle 22 . The covering operation is carried out by the covering 30 in the covering unit 10, and the covering 30 is supported by a bracket 40. The covering 30 is a box-like object made of an elastic material such as rubber with an open end. The structure of the covering 30 has a hole 32 Used as a vent. The support 40 drives the cover 30 to engage or disengage the inkjet ...

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PUM

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Abstract

A cover unit for ink-jet head has a cover of ink-jet head and a supporter for driving said cover to cover the ink-jet head. Said cover has a hole for balancing the pressures inside and outside the cover when the ink-jet head has been covered.

Description

technical field [0001] The invention relates to an inkjet head maintenance device, in particular to an inkjet head maintenance device with an inkjet head cover and a printing device using the inkjet head maintenance device. Background technique [0002] The inkjet printing system is widely used in various fax machines, printing machines, copiers, and other forms of office equipment. The inkjet printing system has an inkjet head maintenance device to ensure the continuous and normal operation of the inkjet head. The inkjet head maintenance device executes Basic inkjet head cleaning and masking functions. In order to ensure the printing quality, the inkjet head should be cleaned before printing and regularly during printing. The inkjet head maintenance device uses a brush to perform the cleaning function. When the inkjet printing system is not used, the inkjet head should be cleaned. cover up, and the cover unit of the inkjet head maintenance device completes the cover functi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/165
CPCB41J2/16508
Inventor 林宗德
Owner QISDA CORP